Earth Planets Space, 50, 883–885, 1998 Comment on “Incessant excitation of the Earth’s free oscillations ” by Nawa et al.
The report of Nawa et al. (1998) that incessant excitation of the Earth’s free oscillations was discovered in the low frequency spectra of the superconducting gravimeter at the Syowa station in Antarctica is reexamined. The mean spectra for Syowa are compared with those for Matsushiro, another super...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.513.5143 2023-05-15T13:55:00+02:00 Earth Planets Space, 50, 883–885, 1998 Comment on “Incessant excitation of the Earth’s free oscillations ” by Nawa et al. Yuichi Imanishi The Pennsylvania State University CiteSeerX Archives 1998 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.513.5143 http://www.terrapub.co.jp/journals/EPS/pdf/5010/50100883.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.513.5143 http://www.terrapub.co.jp/journals/EPS/pdf/5010/50100883.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.terrapub.co.jp/journals/EPS/pdf/5010/50100883.pdf text 1998 ftciteseerx 2016-01-08T09:45:51Z The report of Nawa et al. (1998) that incessant excitation of the Earth’s free oscillations was discovered in the low frequency spectra of the superconducting gravimeter at the Syowa station in Antarctica is reexamined. The mean spectra for Syowa are compared with those for Matsushiro, another superconducting gravimeter station in an extremely calm circumstance, hence showing a much lower noise level than Syowa. Although the spectra for Syowa have many peaks below 3 mHz corresponding to those present in the time-frequency diagram of Nawa et al., no similar peaks are found in the spectra for Matsushiro. This result suggests that the peaks below 3 mHz in the Syowa spectra are not real signals of the Earth’s free oscillations. 1. Text Antarc* Antarctica Unknown Syowa Station |
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English |
description |
The report of Nawa et al. (1998) that incessant excitation of the Earth’s free oscillations was discovered in the low frequency spectra of the superconducting gravimeter at the Syowa station in Antarctica is reexamined. The mean spectra for Syowa are compared with those for Matsushiro, another superconducting gravimeter station in an extremely calm circumstance, hence showing a much lower noise level than Syowa. Although the spectra for Syowa have many peaks below 3 mHz corresponding to those present in the time-frequency diagram of Nawa et al., no similar peaks are found in the spectra for Matsushiro. This result suggests that the peaks below 3 mHz in the Syowa spectra are not real signals of the Earth’s free oscillations. 1. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Yuichi Imanishi |
spellingShingle |
Yuichi Imanishi Earth Planets Space, 50, 883–885, 1998 Comment on “Incessant excitation of the Earth’s free oscillations ” by Nawa et al. |
author_facet |
Yuichi Imanishi |
author_sort |
Yuichi Imanishi |
title |
Earth Planets Space, 50, 883–885, 1998 Comment on “Incessant excitation of the Earth’s free oscillations ” by Nawa et al. |
title_short |
Earth Planets Space, 50, 883–885, 1998 Comment on “Incessant excitation of the Earth’s free oscillations ” by Nawa et al. |
title_full |
Earth Planets Space, 50, 883–885, 1998 Comment on “Incessant excitation of the Earth’s free oscillations ” by Nawa et al. |
title_fullStr |
Earth Planets Space, 50, 883–885, 1998 Comment on “Incessant excitation of the Earth’s free oscillations ” by Nawa et al. |
title_full_unstemmed |
Earth Planets Space, 50, 883–885, 1998 Comment on “Incessant excitation of the Earth’s free oscillations ” by Nawa et al. |
title_sort |
earth planets space, 50, 883–885, 1998 comment on “incessant excitation of the earth’s free oscillations ” by nawa et al. |
publishDate |
1998 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.513.5143 http://www.terrapub.co.jp/journals/EPS/pdf/5010/50100883.pdf |
geographic |
Syowa Station |
geographic_facet |
Syowa Station |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
http://www.terrapub.co.jp/journals/EPS/pdf/5010/50100883.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.513.5143 http://www.terrapub.co.jp/journals/EPS/pdf/5010/50100883.pdf |
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1766261226118053888 |